Sodium Carboxy Methyl Cellulose (CMC) is one of the most important products of cellulose ethers, which are formed by modification of natural cellulose.
It is used in toothpaste and other products and functions as a viscosity modifier or thickener, and stabiliser of emulsions.
It has high viscosity, is non-toxic and is generally considered to be hypoallergenic.
It is also a component in moisture-retentive dressings.